<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div style="text-align: center;">
<a href="/user/reg_form" class="button">注册</a>
</div>
<style>
.button {
  display: inline-block;
  padding: 10px 20px;
  background-color: #f2f2f2;
  text-decoration: none;
  border: 1px solid #ddd;
  margin: 10px 0;
  font-size: 100px;
  cursor: pointer;
}

.button:hover {
  background-color: #ddd;
}
</style>
<div style="text-align: center;">
<a href="/user/login" class="button">登录</a>
</div>
<style>
.button {
  display: inline-block;
  padding: 10px 20px;
  background-color: #f2f2f2;
  text-decoration: none;
  border: 1px solid #ddd;
  margin: 10px 0;
  font-size: 100px;
  cursor: pointer;
}

.button:hover {
  background-color: #ddd;
}
</style>
</body>
</html>